Brand:BENTLY NEVADA
Model: 3500/34
Status: New/Used
The Bently Nevada 3500/34 TMR relay module is a critical component of the 3500 series mechanical protection system, designed to provide reliable relay outputs for alarm, trip, and other control operations. Adopting a Triple Modular Redundancy (TMR) architecture, the 3500/34 ensures enhanced reliability and fault tolerance, making it suitable for high availability and safety critical applications. This module is connected to the 3500 series monitoring system and converts processed vibration and process signals into discrete relay outputs for external control systems.
BENTLY NEVADA 3500/34
BENTLY NEVADA 3500/34 Triple Modular Redundancy (TMR) Relay Module
For applications that meet the high reliability requirements of ISA S84.01-1996 for safety instrumented systems, the 3500 series mechanical protection system supports Triple Modular Redundancy (TMR) relay modules. The TMR relay module uses three independent relays to provide one relay output. The TMR relay module is used in conjunction with a specialized TMR framework interface module and three monitor modules, providing a 3-to-2 voting output.
Each relay in the TMR relay module contains "alarm drive logic". The alarm driver logic adopts "AND" and "OR" logic programming, which can be applied to alarm inputs (warning and danger) from any monitor channel or several monitor channels in the framework. The alarm driver logic is programmed by the 3500 framework configuration software according to different application needs.
Functions of TMR relay module:
The 3500/34TMR relay module consists of two parts: TMR relay module (two) and TMR relay input/output (I/O) module. Through programming, two TMR relay modules simultaneously perform the same function, effectively providing redundant support.
The functions of each section are as follows:
TMR relay module: The TMR relay module provides 3 independent alarm contact signals for each of the 4 relay channels based on the user programmed alarm drive logic. The alarm drive logic for each relay channel is programmed by the 3500 framework configuration software. In the TMR framework, alarm signals (channel warning, channel danger, monitor warning, etc.) used for alarm driving logic are provided simultaneously by three monitors through three independent data channels. The TMR relay module detects each data channel separately, generates three alarm contact signals, and sends them to the TMR-1 module. If the OK status of a data channel is NOT OK - invalid.
Relay I/O module: The TMR relay I/O module contains 12 relays, divided into 4 channels and 3 relays. This method provides a 3-to-2 relay voting function for each relay channel. For each relay channel, the TMR relay module provides three alarm contact signals. Each alarm contact signal is input to a relay in the channel group. These relay channel groups can provide the 3-option voting listed in the table from an electrical design perspective. In addition, each TMR relay module provides an OK status detected by the relay I/O module.
If the module is in a NOT OK state, the alarm contact signal from that module will not be detected.
The TMR relay module contains six LEDs to indicate the operating status OK LED: lights up when the module is working properly
TX/RX LED: Indicates transmission and reception. Flashes when communication between modules within the framework is normal
Channel alarm (CH ALARM) LED: When the relay channel is in an alarm state, it lights up (DPDT). The relay is connected in a single pole single throw (SPST) form and does not support arc extinguishing function. Epoxy seal, contact life 100000 times @ 1.5 A, 24 Vdc or 1 A, 120 Vac relay, each channel is normally charged during use.
The block diagram of TMR relay shows the front and rear views of the TMR relay module
Other models: 3500/05 , 3500/15 , 3500/20 , 3500/22 , 3500/22M , 3500/25 , 3500/32 , 3500/32M , 3500/33 , 3500/34 , 3500/40 , 3500/40M , 3500/42 , 3500/42M , 3500/44M , 3500/45 , 3500/46M , 3500/50 , 3500/53 , 3500/60 , 3500/61 , 3500/62 , 3600/63 ， 3500/64M , 3500/70M , 3500/72M , 3500/77M , 3500/90 , 3500/92 , 3500/93 , 3500/93 System Display , 3500/94 , 3500/95……
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BENTLY NEVADA 3500/34三模冗余（TMR）继电器模块
对于满足ISA S84.01-1996安全仪表系统高可靠性要求的应用，3500系列机械保护系统支持三模冗余（TMR）继电器模块。TMR继电器模块使用三个独立的继电器提供一个继电器输出。TMR继电器模块与专用TMR框架接口模块和三个监控模块结合使用，提供3比2的投票输出。
TMR继电器模块中的每个继电器都包含“报警驱动逻辑”。报警驱动逻辑采用“AND”和“OR”逻辑编程，可应用于框架中任何监控通道或多个监控通道的报警输入（警告和危险）。报警驱动逻辑由3500框架配置软件根据不同的应用需求进行编程。
TMR继电器模块的功能：
3500/34TMR继电器模块由两部分组成：TMR继电器模块（两个）和TMR继电器输入/输出（I/O）模块。通过编程，两个TMR继电器模块同时执行相同的功能，有效地提供了冗余支持。
每个部分的功能如下：
TMR继电器模块：TMR继电器组件根据用户编程的报警驱动逻辑，为4个继电器通道中的每一个提供3个独立的报警触点信号。每个继电器通道的报警驱动逻辑由3500框架配置软件编程。在TMR框架中，用于报警驱动逻辑的报警信号（通道警告、通道危险、监视器警告等）由三个监视器通过三个独立的数据通道同时提供。TMR继电器模块分别检测每个数据通道，产生三个报警触点信号，并将其发送到TMR-1模块。如果数据通道的OK状态为NOT OK-无效。
继电器I/O模块：TMR继电器I/O模块包含12个继电器，分为4个通道和3个继电器。该方法为每个中继信道提供3-2中继投票功能。对于每个继电器通道，TMR继电器模块提供三个报警触点信号。每个报警触点信号都输入到通道组中的继电器。从电气设计的角度来看，这些中继信道组可以提供表中列出的3选项投票。此外，每个TMR继电器模块提供由继电器I/O模块检测到的OK状态。
如果模块处于非正常状态，则不会检测到来自该模块的报警触点信号。
TMR继电器模块包含六个LED，用于指示工作状态OK LED：当模块正常工作时亮起
TX/RX LED：指示传输和接收。当框架内模块之间的通信正常时闪烁
通道报警（CH alarm）LED：当继电器通道处于报警状态时，它会亮起（DPDT）。继电器以单极单掷（SPST）形式连接，不支持灭弧功能。环氧树脂密封，触点寿命100000次@1.5 A，24 Vdc或1 A，120 Vac继电器，每个通道在使用过程中通常会充电。
TMR继电器的框图显示了TMR继电器模块的前视图和后视图
其他型号：3500/05 , 3500/15 , 3500/20 , 3500/22 , 3500/22M , 3500/25 , 3500/32 , 3500/32M , 3500/33 , 3500/34 , 3500/40 , 3500/40M , 3500/42 , 3500/42M , 3500/44M , 3500/45 , 3500/46M , 3500/50 , 3500/53 , 3500/60 , 3500/61 , 3500/62 , 3600/63 ， 3500/64M , 3500/70M , 3500/72M , 3500/77M , 3500/90 , 3500/92 , 3500/93 , 3500/93 System Display , 3500/94 , 3500/95……
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